Television[edit]

His first screen role was as the Harmonica Man in "The Purple Testament," an episode of The Twilight Zone in 1960. Masak appeared as "Mike the boxer" on "The Flying Nun", season 1, episode 26 ("Where There's a Will"), which first aired March 13, 1968. Masak appeared as "Officer #2" on Bewitched, Season 7, Episode 4 ("Samantha's Hot Bedwarmer") - first aired 10/15/1970. He also had a guest appearance as Beauregard Jackson in the episode "Hurricane" on Land of the Lost. He appeared in the second season of Barney Miller episode of "The Horse Thief" as officer Shriker. In 1981 Masak guest starred on the Magnum, P.I. episode "Skin Deep". He also guest starred in Quincy, M.E.

He is perhaps best known for a recurring role on Murder, She Wrote as SheriffMort Metzger, although he did make two other appearances in "Footnote to Murder" as Lt. Meyer and "No Accounting for Murder" as Marty Giles.

In the 1980s and early 1990s, he was dubbed "The King of Commercials" for his many commercials, including voice-over work, most notably for a Vlasicpickles ad. From 1982 to 1983 he did the voice of Meatballs on the CBS cartoon series Meatballs & Spaghetti. He also did the voice for Veteran Holt in the video-game Medal of Honor: European Assault.